Pipe-coupling.



PATENTED APR. 26, 1904.

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UNITED STATES Patented April 26, 1904.

PATENT OFFICE.

ySAMUEL H. POWERS, OF ST. JOSEPH, MISSOURI.

PIPE-COUPLING.

SPECIFICATION formingpart of Letters Patent No. 758,102, dated' April26, 1904.

Application led March Z8, 1903.

To cir/ZZ whom t 1v1/ty concern:

Be it known that I, SAMUEL H.,PowERs, a citizen of the United States,residing at St. Joseph, in the county of- Buchanan and State ofMissouri, have `invented certain new and use-` device of this characterwhich shall combine strength of construction with simplicity of parts.

Referring now to the drawings, Figure 1 is a side elevationV oftheadjoining ends of two pipes fitted with my coupling. Fig. 2 is a Fig. 3is side elevation of one of the collarsV removed from the pipe-section.Fig. 4 is a side elevation of the male pipe member. Fig. 5 is a" planview of the collar shown in Fig. 3. Fig. 6 is a side elevation of thefemale pipe member.

A indicates the male pipe member, provided with a bore of uniformdiameter and having its end conically taperedfas at A2. It is Afurtherprovided with a flaring portion A', forming a'conical enlargement on theexterior of the pipe a short distance above the end.

B indicates the female pipe member, which has the extremity of its wallsiared outwardly,

forming a conical enlargement B2 of the bore for the reception of thetapered end of the male pipe member and a conically-flaring exteriorportion B, similar to the conical enlargement upon the-male member.

Surrounding each enlargement is asectional collar C, formed in twosections a c. vThe collars are provided with conical bores correspondingin inclination to the conical enlargements of the members, but of suchdiameter as to be securely retained thereon by the action of bolts bwhich pass through and connect the collars to each other. As clearlyillustrated in Figs. Sand 5, section c is providedl with two rectangulartongues e c continuous with its upper face and cut-away portions f, andsection e' is provided with two corresponding tongues g, continuons withits lower face, and cut-away portions it, adapted Serial No. 149,9'20.(No model.)

fitted t i gether, then the sections of the collars are put in placearound the conical. enlargements, and bolts are passed through theregistering apertures and secured by their nuts d.

From the foregoing description it will be i appreciated that myinvention combines ina high degree the essential qualities of strength,efficiency, and simplicity. Frictional sliding contact is employedthroughout the coupling, and by wedging the members together it affordsa water-tight and strongjoint. It will be observed that the tapered endof the male pipe member slides frictionally within the seat in thefemale member,` one collar rides frictionally upon the conicalenlargement of the male member, while the other collar operatessimilarly upon the flaring end of the female member. While this slidingaction effects a most eflicient joint, it is productive within the pipemembers of considerable lateral strain. Against this lateral strain thejoint is doublj7 reinforced. The conical enlargement of the male member,which is subject to a large part of the stress, is so formed withreference to the pipe-walls as to produce a double thickness of metal atthis point, and, further, the tapered end of the male-member forms, withthe aring portion of the female member, a double thickness to resist thestrain of the second collar. In this connection it should be noted thatthe end of the male member extends a-suliicient distance Within thefemale member to be directly beneath the collar.

While'my coupling is intended for use in pipes of all materials, it isparticularly adapted for cast-iron soil-pipes.

What I claim as new isl. In a device of the character described, afemale pipe member having the extremity of its walls inclined outwardlyforming a conically-flaring seat and a conically-iiaring exteriorportion, and a male pipe-member having IOO a bore of uniform diameter,said member be-V ing provided with an integral, conically-tapered endadapted to slide frictionally within the seat of the female member,forming a double thickness of metal therewith, said male member beingfurther provided with a conically-flaring portion adjacent' said end andintegral with the wall of the member, forming a double thickness ofmetal therewith; combined with a collar surrounding the aring portion ofthe male member and riding frictionally thereon, a second collarsurrounding the double thickness formed by the flaring portion of thefemale member and the tapered end of the male member and ridingfrictionally thereon, and means for securing said collars together.

. 2. In a device of the character described, a

female pipe member having the extremity of its walls inclined outwardlyforming a conically-iiaring seat and a conically-iaring eXteriorportion, and a male pipe member having a bore of uniform diameter, saidmember being provided with an integral, conically-tapered end adapted toslide fr ictionally within the seat of the female member, forming adouble thickness of metal therewith, said male member being furtherprovided with a conically-iiaring portion adjacent said end and integralwith the wall of the member, forming a double thickness of metaltherewith; combined with a collar of conical bore surrounding theflaring portion of the male member and riding frictionally thereon, asecond collar of conical bore surrounding the double thickness formed bythe aring portion of the female member and the tapered end of the malemember and riding frictionally thereon,

and bolts connecting said collars together.

In testimony whereof I hereto afhx my signature in presence of twowitnesses.

SAMUEL H. Pownns.

Witnesses:

L. RANsoM, J. 1. REDDING.

